3,895 plants indexed worldwide.
Plants located within 10 km of a coastline. Discharge impact on marine environments is a primary concern for these facilities.
High Point SD WWTP in North Fort Myers, Florida, provides advanced treatment for a small population. The plant discharges treated wastewater near the coast, supporting local water quality.
Higuera Blanca wastewater treatment plant in Nayarit, Mexico, serves 1,369 people with secondary treatment. It discharges 129.60 m³/day of treated effluent near the Pacific coast.
Hihi wastewater treatment plant serves the Te Hiku Community in Northland, New Zealand, with advanced treatment for a population of 843. It discharges treated wastewater near the coast, supporting local water quality.
Hill Road Botwood 2 is a secondary treatment plant serving 666 people in Botwood, Newfoundland and Labrador, Canada. It discharges 299.00 cubic meters of treated wastewater daily near the coast.
Hillsborough Lagoon is a secondary treatment plant serving 1,058 people in Hillsborough Parish, New Brunswick, Canada. It discharges treated wastewater near the Bay of Fundy coast.
Himatangi Beach wastewater treatment plant serves 193 people in Manawatū-Whanganui, New Zealand. It provides secondary treatment and discharges treated wastewater near the coast.
HINDERWELL STW is a secondary wastewater treatment plant in Loftus, England, serving approximately 2,000 people. It discharges treated effluent near the North Sea coast, operating under UK regulations.
Hinesburg WPCF is an advanced wastewater treatment plant serving 1,530 people in Hinesburg, Vermont. It discharges treated water near the Lake Champlain basin, a critical freshwater ecosystem.
Hohenfelde wastewater treatment plant in Schleswig-Holstein, Germany, serves 1,037 people with secondary treatment. The plant is now closed but historically discharged near the Baltic Sea coast.
HOJBY wastewater treatment plant in Højby, Denmark, serves 3,140 people with advanced treatment. It discharges 603.49 m³/day and is located within 10 km of the coast.
HOJER wastewater treatment plant serves Tønder, Denmark, treating municipal wastewater for 3,790 people. It operates with secondary treatment and discharges treated effluent near the Wadden Sea coast.
Holbox wastewater treatment plant serves the island community of Holbox, Quintana Roo, Mexico, with secondary treatment. It discharges approximately 279 cubic meters of treated wastewater daily, operating as a coastal facility.
Holland Landing WPCP is a secondary treatment plant in York Region, Ontario, serving 2,178 people. It discharges 978 cubic meters of treated wastewater daily near Lake Simcoe.
Hollets Road Outfall is a secondary treatment plant serving 443 people in Marystown, Newfoundland and Labrador, Canada. It discharges 199.00 cubic meters of treated wastewater daily near the coast.
Holly Ridge WWTP is a secondary treatment facility in Onslow County, North Carolina, serving 833 people. It discharges treated wastewater near the coast, with a designed capacity of 984.20 volume units.
Holme on Spalding Moor STW is a secondary treatment plant in East Riding of Yorkshire, England, serving 2,887 people. It discharges 642.75 m³/day of treated wastewater and has a designed capacity of 3,210 m³/day.
HOLME STW is a secondary treatment plant serving 3,507 people in Holme, England. It discharges 780.78 m³/day of treated wastewater within 10 km of the coast.
Holte avlopsrenseanlegg is a secondary treatment plant in Harstad, Norway, serving 805 people. It discharges 349.11 ML/year and is located within 10 km of the coast.
Holton le Clay STW is a secondary treatment plant in East Lindsey, England, serving 3,440 people. It discharges 765.86 m³/day of treated wastewater and has a designed capacity of 4,950 m³/day.
Hondschoote wastewater treatment plant in Hauts-de-France, France, serves about 4,000 people with advanced treatment. It discharges treated water near the coast, supporting local water quality.